html,body,div{
    margin:0;
    padding: 0;
    box-sizing: border-box;
}
html,body{
    height: 100%;
}

.ml-5{
    margin-left: 5px;
}

.mr-5{
    margin-right: 5px;
}
.pd-10{
    padding: 10px 0;
}
.mg-10{
    margin: 10px 0;
}